ZC Very hard to start when cold
 

It will take a solid minute of cranking to start it when it is cold, then it will bog and die the first time it starts....second time is another long crank and runs great. if it sits for a few hours it will do it again. I just replaced the coil and cap and rotor cause the coil commited suicide. any thoughts?

Re:ZC Very hard to start when cold
 

i just cleaned my IACV it was NASTY so hopefully that does the trick i will see again in a few hours when the car is cold!

Re:ZC Very hard to start when cold
 

update?

Re:ZC Very hard to start when cold
 

no luck, still slow to start and when it gets going it bogs down......if you floor it when it is bogging it continues to bog and sounds like it is backfiring through the intake manifold....if that makes sense. however once warmed up the idle is awsome and runs much smoother now that i cleaned that thing! so i am ready for more ideas!

Re:ZC Very hard to start when cold
 

list of things i have already tried to fix this issue

cap
rotor
coil
plugs
plug wires
fuel pump
fuel filter
air filter
fluched gas tank out with good gas
cleaned IACV

all of this changed little to nothing

Re:ZC Very hard to start when cold
 

timing?

Re:ZC Very hard to start when cold
 

that is what i am gonan try today,Imma have a light put on it....anyone know the specs it shoudl be at for a zc?

Re:ZC Very hard to start when cold
 

16 btdc

Re:ZC Very hard to start when cold
 

Well when it is cold doesn't it inject alot of fuel. If it does this and you injectors are dirty it could just shoot a jet of fuel instead of a mist. Someone correct me if I am wrong. So lets say that when your finally warms up the fuel that is coming in is cold and it meets the warm/ hot intake manifold it will expand making it atomize better but not like it should. Clean your injectors. I don't know how but with fuel injector cleaner. Worth a shot.

Re:ZC Very hard to start when cold
 

i didint have it on my list but i ran to tanks with fuel injector cleaner through it already. I was thinking that maybe i might need to have them taken out and cleaned?

Re:ZC Very hard to start when cold
 

buy spares then, they're cheap. Shiping yours out to be cleaned would take a few weeks I bet.

Re:ZC Very hard to start when cold
 

actually there is a shop a few blocks form my work that can do it i think...i will just drive the S2000 while the CRX is down! :)

Re:ZC Very hard to start when cold
 

May be simple but what about the battery.

Re:ZC Very hard to start when cold
 

Worth a shot, but when the engine is cold it actually sprays more fuel, cold start enrichment.

It sounds like something simple, but maybe you should start double checking the stuff you already replaced.

Jeff

Re:ZC Very hard to start when cold
 

If you're OBD1 I'll ship you a set of stock injectors for like $7 and you can have a spare set if that doesn't fix it.

It's hard to say without hearing it in person. Any smoke? What does the exhaust smell like? Any mods? Boosted or N/A?
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Re:ZC Very hard to start when cold
 

ok so i had it checked out the fuel pump is bad.......but after talking with the mechanic guy he thinks i may have just kinked a line since i just replaced it. So tonight the fuel tank gets dropped to inspect for a kink i hope1 :) that fuel pump has under 1k on it! damnit! Also the Fuel inject buss relay is going out......what the hell does that mean? :) least i know what it is now! hopefully i was just dumb and put a kink in the line somehow!

Re:ZC Very hard to start when cold
 

I hope it is on a flexable line cuz if it is on a hard line you have to rebend all that ---- and it sucks. Or use stainless.

Re:ZC Very hard to start when cold
 

ok so I uncinked the line, it was a flexable one it was pressed against the body of the car.....so now problem is still there(the line didint looked "That" cinked). I really dont think it is the fuel pump when i turn the key to the on spot you can here it whir for a second then shot off like it has pressure......so my next question is what is the "fuel ingeect buss relay"? they said that was also going bad.,......so i will replace this in my next effort! Any ideas or links on what it is and where i can get one... i FOund something called a ignition power relay.....would that be it?

Re:ZC Very hard to start when cold
 

If your fuel pump kicks on and it cranks over, it won't be your main relay. I don't know WTF that other thing is? ??? I've never heard of that. I think someone was talking out of their ass. ???
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Re:ZC Very hard to start when cold
 

i know u changed the plugs, but did u buy the wrong ones, they might be too cold, just a thought.

Re:ZC Very hard to start when cold
 

what ones should i have gotten i got the ones for a stock integra 89........This problem is starting to piss me off sooooooo bad. I know it is something simple and probably costs like 5 bucks but i am spending alot fixing everything else...i guess i have a new car when i am done haha. Could this be a bad PCV valve?

Re:ZC Very hard to start when cold
 

does it have less power then before you change the timing belt don? it sounds to me like the timing is off (the cam timing)put the crank to TDC and make sure the cams are flat.

Re:ZC Very hard to start when cold
 

has the same power as befor. wanan help me do whateever that means???

Re:ZC Very hard to start when cold
 

Just make sure the lines on the cam gears are even and the "up" part is facing up in the same direction. They won't be "perfectly up" but you should be able to tell if they are off. They will kinda angle in at each other.

Another way(the better way)to tell is to take the valve coover off and take a look. The cams have alignment holes in them so that makes it easy. Set the crank to TDC and make sure you can stick a pin in the alignment holes on the cams. I would take a picture for you if my valve cover was off.
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Re:ZC Very hard to start when cold
 

hey man whats up. sounds like the same problim some one eles i know has. sounds like leaking injectors. so when the car sits it just drips fuel in to the combustion chamber. just a idea along with all the rest.

sorry for speling i am tipsy and dont care.

Re:ZC Very hard to start when cold
 

ok updated list of crap i have tried now.

Replaced alot of visual wires int he engine bay with corrosion on them, replaced both batter cables and all lines assosiated with batter and made that battery look like new, gunked out the engine bay just for good measure. put a new pg7 ecu in that bitch. Problem seems to have gone away, not sure if it will come back or not we will see later today i guess....There was ALOT of corrsion on come of the wires though, so maybes i was getting a bad connection somewhere...i replaced/and or cleaned up alot of them!

Re:ZC Very hard to start when cold
 

well i just now read this thread. At first I was going to say something along the lines of timing but it really sounded like it was flooding out. So poor ignition would equal flooding.

Re:ZC Very hard to start when cold
 

SO DOES THAT MEAN THE CORROSION COULD HAVE BEEN DOING IT? SORRY FOR THE CAPS IM AT WORK AND HAVE TO USE THEM

Re:ZC Very hard to start when cold
 

yes it could have caused that. more corrosion = more resistance = less current = crappier spark ;)